Some users run old 32-bit systems or low-RAM machines. They believe an older, repacked version will run faster. (Ironically, official modern Photoshop is better optimized than repacked 2018 builds.)

For reference, here is what the genuine Photoshop CC 2018 required:

Supporting developers ensures the software continues to improve.

The Paradox of Accessibility: An Analysis of "Adobe Photoshop CC 2018 v19.1.1.142094 x86x64 Repack"

High compression levels can shrink the installer by 20% to 80%.

— Repacks from unknown sources can contain malware, spyware, or unwanted software (adware, miners, remote access tools). Even if functional, they may compromise your system.

There are several benefits to using Adobe Photoshop CC 2018 v19.1.1.42094 x86/x64 Repack, including: